Container-free ultramicro chemical reaction observation device

An observation device and a technology for chemical reactions, which are applied in the field of container-less ultra-micro chemical reaction observation devices, can solve the problems that expensive reagents cannot be used in experimental teaching, do not conform to green chemistry, and have been widely promoted, so as to facilitate popularization, save experimental costs, Guarantee the effect of the experimental effect

Active Publication Date: 2020-07-03
ZHAOQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] In traditional chemistry experiment teaching, beakers, test tubes and other devices are often used to observe phenomena such as dissolution, discoloration, precipitation, and gas generation, which often consume more chemical reagents
In this case, on the one hand, the cost of the experiment is high, so that some expensive reagents cannot be used in experimental teaching; on the other hand, the products after the reaction are more difficult to handle, which is easy to cause environmental pollution, which does not conform to the concept of green chemistry.
Some manufacturers have developed instruments for microchemical reactions, but the observation effect is often poor, and they have not been widely promoted in teaching

Method used

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  • Container-free ultramicro chemical reaction observation device
  • Container-free ultramicro chemical reaction observation device
  • Container-free ultramicro chemical reaction observation device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A container-less ultra-trace chemical reaction observation device, such as figure 1 As shown, it consists of a base (1), a protective cover (2), a protective cover top cover (3), a reagent adder (4), a cleaner (5), a heating coil (6), a waste liquid collector (7), A magnifying glass (8), a video acquisition device (9), and a clamp (10) are composed, and press figure 1 way to install.

[0035] Wherein, the protective cover (2) is installed on the base (1), and is used to prevent chemical reagents from splashing out during the experiment. The protective cover top cover (3) is installed on the top of the protective cover (2), and the surface is provided with a number of holes with thumbscrew locking devices for installing the reagent adder (4) and the cleaner (5). The number of reagent adders (4) depends on actual needs, generally 2 to 4, and the number of cleaners (5) is generally 1 to 2. When adding liquid reagents, the reagent adder (4) uses an injection device in th...

Embodiment 2

[0041] The present invention is used for observing the reaction of ferric chloride solution and potassium thiocyanate solution

[0042] In this embodiment, a ferric chloride solution with a concentration of 0.015 mol / L and a potassium thiocyanate solution with a concentration of 0.015 mol / L are used for the reaction. Such as Figure 4 As shown, the process of the solution from nearly colorless to brown-red was clearly observed. It can be seen that the present invention is suitable for observing chemical reactions of discoloration.

Embodiment 3

[0044] The present invention is used for observing the reaction of silver nitrate solution and potassium chloride solution

[0045] In this embodiment, a silver nitrate solution with a concentration of 0.15 mol / L and a potassium chloride solution with a concentration of 0.15 mol / L are used for the reaction. Such as Figure 5 As shown, the process of the solution from clear to cloudy was clearly observed. It can be seen that the present invention is suitable for observing chemical reactions that produce precipitation.

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PUM

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Abstract

The invention relates to the field of chemical reaction devices, and in particular, relates to a container-free ultramicro chemical reaction observation device. The invention discloses the container-free ultramicro chemical reaction observation device composed of a base, a protective cover, a protective cover top cover, a reagent adding device, a cleaning device and a waste liquid collector. The protective cover is mounted on the base, the protective cover top cover is mounted at the top of the protective cover, a plurality of hole sites are formed in the surface of the protective cover top cover, and the hole sites are used for mounting the reagent adding device and the cleaning device; the waste liquid collector is arranged below the reagent adding device and the cleaning device and is used for receiving a reaction product or cleaned waste liquid. The chemical reaction observation device solves the problems that an existing chemical reaction observation device is poor in observationeffect and is not universally popularized in teaching. The device is simple in structure, low in cost, convenient to manufacture, easy and convenient to operate and convenient to popularize.

Description

technical field [0001] The invention relates to the field of chemical reaction devices, in particular to a containerless ultra-micro chemical reaction observation device. Background technique [0002] In traditional chemical experiment teaching, beakers, test tubes and other devices are often used to observe phenomena such as dissolution, discoloration, precipitation, and gas generation, which often consume more chemical reagents. In this case, on the one hand, the cost of the experiment is high, so that some expensive reagents cannot be used in experimental teaching; on the other hand, the products after the reaction are more difficult to handle, which is easy to cause environmental pollution, which does not conform to the concept of green chemistry. Some manufacturers have developed instruments for microchemical reactions, but the observation effect is often poor, and they have not been widely promoted in teaching. Contents of the invention [0003] In view of the above...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B23/24
CPCG09B23/24
Inventor 姚夙韦寿莲汪洪武
Owner ZHAOQING UNIV
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